搜索结果: 1-13 共查到“理学 quantum Monte Carlo”相关记录13条 . 查询时间(0.073 秒)
Exact quantum Monte Carlo process for the statistics of discrete systems
Monte carlo and discrete quantum system statistical data the grid virtual transformation
2014/12/23
We propose an exact Monte Carlo approach for the statistics of discrete quantum systems that does not employ the standard partition of the imaginary time into a mesh and does not contain small paramet...
Quantum-Monte-Carlo Calculations for Bosons in a Two-Dimensional Harmonic Trap
Bose system the boson harmonic trap condensate oil fractions super fluid density gas condensate
2014/12/22
Path-Integral-Monte-Carlo simulation has been used to calculate the properties of a two-dimensional (2D) interacting Bose system. The bosons interact with hard-core potentials and are confined to a ha...
Quantum-Monte-Carlo calculations for Bosons in a two-dimensional harmonic trap
Simulation of the bose system bosons harmonic trap the fluid density
2014/12/22
Path-Integral-Monte-Carlo simulation has been used to calculate the properties of a two-dimensional (2D) interacting Bose system. The bosons interact with hard-core potentials and are confined to a ha...
Diagrammatic Quantum Monte Carlo for Two-Body Problems: Applied to Excitons
Accurate numerical solution exciton solid monte carlo simulation catamaran green function feynman electron hole
2014/12/22
We present a novel method for the precise numeric solution of the irreducible two-body problem and apply it to excitons in solids. The approach is based on the Monte Carlo simulation of the two-body G...
Pairing in graphene: A quantum Monte Carlo study
Pairing in graphene A quantum Monte Carlo study
2014/5/28
To address the issue of electron correlation driven superconductivity in graphene, we perform a systematic quantum Monte Carlo study of the pairing correlation in the t -U-V Hubbard model on a honeyco...
To address the issue of electron correlation driven superconductivity in graphene, we perform a systematic quantum Monte Carlo study of the pairing correlation in thet-U-VHubbard model on a honeycomb ...
Quantum Monte Carlo calculations of spectroscopic overlaps in $A \leq 7$ nuclei
Quantum Monte Carlo calculations spectroscopic overlaps
2011/7/20
We present Green's function Monte Carlo calculations of spectroscopic overlaps for $A \leq 7$ nuclei. The realistic Argonne v18 two-nucleon and Illinois-7 three-nucleon interactions are used to genera...
Impact of the Electron Density on the Fixed-Node Errors in Quantum Monte Carlo
the Electron Density the Fixed-Node Errors Quantum Monte Carlo
2011/8/5
Abstract: We analyze the effect of increasing charge density on the Fixed Node Errors in Diffusion Monte Carlo by comparing FN-DMC calculations of the total ground state energy on a 4 electron system ...
Quantum Monte Carlo facing the Hartree-Fock symmetry dilemma: The case of hydrogen rings
Quantum Monte Carlo Hartree-Fock hydrogen rings
2011/8/5
Abstract: When using Hartree-Fock (HF) trial wave functions in quantum Monte Carlo calculations, one faces, in case of HF instabilities, the HF symmetry dilemma in choosing between the symmetry-adapte...
Correlation Effects in Quantum Spin Hall Insulators: a Quantum Monte Carlo Study
Correlation Effects Quantum Spin Hall Insulators Quantum Monte Carlo Study
2010/11/25
We consider the Kane-Mele model with spin-orbit coupling supplemented by a Hubbard U term.
On the basis of projective auxiliary eld quantum Monte Carlo simulations on lattice sizes up to 12 12, ...
A Quantum Monte Carlo Study on Mixed-Spin Chains of
1/2-1/2-1-1 and 3/2-3/2-1-1
ferrimagnetic gap valence-bond-solid (VBS) state
2007/8/15
2003Vol.40No.5pp.623-630DOI:
A Quantum Monte Carlo Study on Mixed-Spin Chains of
1/2-1/2-1-1 and 3/2-3/2-1-1
XU Zhao-Xin,1 ZHANG Jun,2 and YING He-Ping1,3
1 Zhejiang Ins...
Energies of the first row atoms from quantum Monte Carlo
Energies of the first row quantum Monte Carlo
2010/11/24
All-electron variational and diffusion quantum Monte Carlo calculations of the ground state energies of the first row atoms (Li to Ne) are reported. We use trial wavefunctions of four types:single det...
Introduction to Quantum Monte Carlo Simulations for Fermionic Systems
Quantum Monte Carlo Fermionic Systems
2010/10/27
We tutorially review the determinantal Quantum Monte Carlo method for fermionic systems, using the Hubbard model as a case study. Starting with the basic ingredients of Monte Carlo simulations for cla...